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十二、定语从句I.定语从句起了形容词的作用,在句中修饰一个名词或代词。被修饰的词叫做先行词,引导定语从句的词叫关系词,他的作用一是放在先行词与定语从句中间起了连接作用,二是在从句中担当一个成分,并与先行词保持数的一致。关系词先行词从句成分例句备注关系代词who人主语Doyouknowthemanwhoistalkingwithyourmother?whom,which和that在从句中做宾语时,常可以省略,但介词提前时后面关系代词不能省略,也不可以用thatwhom人宾语Mr.SmithisthepersonwithwhomIamworkingTheboy(whom)sheloveddiedinthewar..whose人或物定语Ilikethosebookswhosetopicsareabouthistory.Theboywhosefatherworksabroadismydeskmate.that人或物主语,宾语Aplaneisamachinethatcanfly.Sheisthepopstar(that)Iwanttoseeverymuch.which物主语,宾语Thebook(which)Igaveyouwasworth$10.Thepicturewhichwasabouttheaccidentwasterrible.as人或物主语,宾语Heissuchapersonasisrespectedbyallofus.ThisisthesamepenasIlostyesterday.as做宾语一般不省略when时间时间状语Iwillneverforgetthedaywhenwemetthere.可用onwhich
关系副词where地点地点状语ThisisthehousewhereIwasborn.可用inwhichwhy原因原因状语Ican’timaginethereasonwhyheturneddownmyoffer.可用forwhichII.that与which,who,whom的用法区别情况用法说明例句只用that的情况1.先行词为all,everything,anything,nothing,little,much,等不定代词时2.先行词被all,any,every,each,much,little,no,some,few等修饰时3.先行词有形容词最高级和序数词修饰时4.先行词既指人又指物时5.先行词被theonly,thevery修饰时6.句中已经有who或which时,为了避免重复时1.Hetoldmeeverythingthatheknows.2.Allthebooksthatyouofferedhasbeengivenout.3.ThisisthebestfilmthatIhaveeverread.4.Wetalkedaboutthepersonsandthingsthatweremembered.5.HeistheonlymanthatIwanttosee.6.Whoisthemanthatismakingaspeech?只用which,who,whom的情况1.在非限制性定语从句中,只能用which指代物,用who/whom指人2.在由“介词+关系代词”引导的定语从句中,只能用which指物,whom指人。3.先行词本身是that时,关系词用which,先行词为those,one,he时多用who。1.Hehasason,whohasgoneabroadforfurtherstudy.2.Ilikethepersontowhomtheteacheristalking.3.Thosewhorespectothersareusuallyrespectedbyothers.III.as、which和that的区别从句区别例句限制性定语从句中名词前有such和thesame修饰时,关系代词用as,不能用whichHeisnotsuchafoolashelooks.Don’treadsuchbooksasyoucan’tunderstand.
非限制性定语从句中as和which都可以指代前面整个主句。如果有“正如,象”的含义,并可以放在主句前,也可以放在后面,那么用as;而which引导的从句只能放主句后,并无“正如”的意思。Theywonthegame,aswehadexpected.Theywonthegame,whichwehadn’texpected.Asiswellknown,heisafamousfilmstarinthe1980s.thesame...as和thesame...thatthesame...as指同类事物thesame...that指原物That’sthesametoolasIusedlastweek.(同类工具,不是同一把)That’sthesametoolthatIusedlastweek.那就是我上周用过的工具。注意:theway做先行词时,定语从句可由that,inwhich引导或不用引导词。IV.定语从句与其它从句(句型)的区别类别区别例句定语从句与并列句定语从句与并列句的主要区别在于:并列句有像and,but,so等并列连词或两个句子用分号连接,这时就不能再用引导定语从句的关系词了。①MrLihasthreedaughters,noneof_____isanengineer.②MrLihasthreedaughters,butnoneof_____isadancer.从结构上看,①小题是定语从句,故填whom;②小题有并列连词but,是并列句,故填代词them。定语从句与状语从句定语从句的前面有名词作先行词,而状语从句没有先行词。Thisistheplacewhereweusedtoliveafewyearsago.这是几年前我们居住的地方。(定语从句,先行词为theplace)Let’sgowherewecanfindabetterjob.我们到能找到更好的工作的地方去吧。(地点状语从句)定语从句修饰、限制、说明名词,只能放在先行词的后面,而状语从句说明动作发生的情况,并且可以放在主句的前面。Doyouknowthetimewhentheclassisover?你知道下课的时间吗?(定语从句)Itwasalreadyfiveo’clockwhentheclasswasover.=Whentheclasswasover,itwasalreadyfiveo’clock.当下课时己经是5点了。(时间状语从句)
When,where和why在引导定语从句时可以用“介词+which”的结构来替换,在引导状语从句时却不行。Thisisthefactoryinwhich(where)hisfatheronceworked.这就是他的父亲曾经工作过的那个工厂。(定语从句)Putbackthebookwhereitwas.把书放回原处。(状语从句)定语从句中的关系词在从句中充当某种句子成分,因此去掉它则从句成分不完整;而结果状语从句中的连接词在从句中不作任何成分,去掉后从句的成分仍然完整。Itissuchaninterestingbookaswealllike.它是我们大家都喜欢的如此有趣的书。(as用作动词like的宾语,它引导的是定语从句)Itissuchaninterestingbookthatwealllikeit.它是一本如此有趣的书,我们大家都喜欢它。(that不充当句子成分,故它引导的是结果状语从句)定语从句与同位语从句定语从句在复合句中相当于形容词,对先行词起修饰、描述或限制的作用,与先行词之间有从属关系。同位语的作用相当于名词,对前面的名词给予补充说明或进一步解释,是前面名词的具体内容,与先行词之间是同位关系。Thenewsthatshehadpassedtheexammadeherparentsveryhappy.她考试及格的消息使她父母亲很高兴。(同位语从句)此句中的同位语从句Thenewsthatshehadpassedtheexam可以改写成表语从句:Thenewsisthathepassedtheexam.Thenewsthathetoldusinterestedallofus.他告诉我们的消息使大家都感兴趣。(定语从句)Thenewsthathetoldus是定语从句,此句不能改写为:Thenewsisthathetold us.定语从句与强调句强调句的结构为“Itis/was+被强调部分+that+从句”。被强调部分可以是除谓语以外的任何成分,当被强调部分是人时,还可用who代替that。这一句型中,一定不能因为被强调部分是表时间或地点的词就用when或where代替that。①ItisonthemorningofMay1st_____ImetLiangWeiattheairport.②Itisthefactory_____MrWangworks.从结构上看:①小题是强调句,故填that。②小题则是定语从句,用上述方法转换便知thefactory前差个介词in,故填where。
一、关系代词和关系副词的功能关系代词和关系副词功能有三个:1)用来引导定语从句,在先行词和定语从句之间起纽带作用,使二者联系起来。2)关系代词和关系副词可作定语从句的一个成分。关系代词可作主语、宾语、定语;关系副词可作状语。3)关系代词和关系副词在从句中代替在他前面的先行词。1、作主语关系代词在定语从句中作主语时,从句的谓语动词的人称和数应与先行词一致。Allthatisneededisasupplyofoil.(引导词that在句中作主语)TheforeignerwhovisitedourclassyesterdayisfromCanada.(引导词who在句中作主语)2、作宾语在定语从句里作宾语的关系代词在口语中常被省去Thenoodles(that)Icookedweredelicious.(引导词that,可省略)Thefish(which)weboughtwasnotfresh.(引导词which,可省略)3、作定语关系代词whose在定语从句中作定语用。ThisistheboywhosemotherisourChineseteacher.注意:关系代词whose在从句中与它所修饰的词一起作介词宾语时,可以跟介词放在主语和从句之间。ThebossinwhosecompanyMr.Kangworkedcalledatthehospital.4、作状语关系副词where,when和why在定语从句中分别作地点状语、时间状语和原因状语。I"llneverforgetthetimewhenweworkedonthefarm.Thefactorywherehisfatherworksisinthewestofthecity.Thisisthereasonwhyhecamelate.二、关系代词的用法英语中的关系代词有who,whom,whose,which,that和as。它们的用法如下:1、who,whom的用法who和whom指人,who在定语从句中作主语;whom在定语从句中作宾语,在限制性定语从句中可省略。在口语中可用who代替whom。Inthebeginning,peoplewhoboughtthetomatooftengotangry.(作主语)Theperson(whom)youshouldwritetoisMr.Ball.(whom作宾语能省略)Hismother,whomheloveddearly,diedin1818.(whom引导非限制性定语从句,作宾语但不能省略)2、whose的用法whose指人或物,在定语从句中作定语,指物时常可用ofwhich取代。Ihaveafriendwhosefatherisamayor.Welivedinahousewhosewindowfacessouth.
3、which的用法which指物,在定语从句中作主语和宾语,作宾语时,在限制性定语从句中可省略。Theyneededaplantwhichdidn"tneedasmuchwaterasrice.(作主语,不能省略)Itisusedtorecordthetickets(which)passengersbuy.(作宾语,可以省略)Hecamelate,whichweallknow.(作宾语,在非限制性定语从句中不省略)4、that的用法that多指物,有时也指人,在定语从句中作主语或宾语,指物时其用法和which大致相同,但也有区别。Allthepeoplethatcomefromthecountryworkmuchharder.(that指人,在从句中作主语,不能省略)Sheistheonlyperson(that)Icantrust.(that指人,在从句中作宾语,可以省略)5、关系代词that和which的区别(1)相同点这两个关系代词引导定语从句时,都可以指物;在从句中都可作主语或宾语;作宾语时都可省略。Thetrainthat(which)hasjustleftisforShanghai.(作主语)Thefilmthat(which)wesawlastnightiswonderful.(作宾语,可省略)(2)用that,不用which的情况①当先行词是不定代词all,one,few,little,everything,nothing,any,anything,little等不定代词或被它们修饰时。IsthereanythingthatIcandoforyou?Heansweredfewquestionsthattheteacherasked.②当先行词被形容词最高级或序数词修饰时。Thiswasoneofthemostinterestingbooksthatweresoldinthisbookstore.③当先行词有thevery,theonly,thesame等修饰时。That’stheonlythingthatwecandonow.Thosearetheverywordsthatheused.④当先行词是一个既指人又指物的并列词组时。Theyweretalkingaboutthepersonsandthingsthattheysawinthefactory.⑤当关系代词在定语从句中作表语时。Chinaisnotthecountrythatitwas.⑥当要避免与疑问词which重复时。WhichisthecarthatwasmadeinBeijing?⑦当先行词为theway,thetime,theperiod等时,关系代词常用that,但通常被省略。Idon"tliketheway(that)youspeaktoher.(3)用which,不用that的情况①引导非限制性定语从句。
Football,whichisaninterestinggame,isplayedallovertheworld.②直接放在介词后作宾语时。Languageisthemostimportanttoolwithoutwhichpeoplecan"tcommunicatewitheachother.6、关系代词who与that的区别(1)当先行词是he、people、those等时,引导词常用who。HewhodoesnotreachtheGreatWallisnotatrueman.Thosewhoareforme,putupyourhands.(2)当引导词作定语从句的表语时常用that。Sheisn"tthelittlegirlthatsheusedtobe.HeisthemanthatIaskedforhelpyesterday.7、as的用法(1)as引导限制性定语从句通常构成such...as或thesame...as固定搭配,as在从句中可作主语、表语或宾语。Manyofthesportswerethesameastheyarenow.(作表语)Don’treadsuchbooksasarenotworthreading.Readsuchbooksasyoucanunderstand.Helentmeasmuchmoneyashehad.(2)such…that…与such…as“such…that…”表示“如此……以致……”的意思,用来引导一个结果状语从句;而“such…as…”表“像……这样的……”的意思,用来引导定语从句,as在从句中充当主、宾或表语等。Heissuchanhonestmanthatwerespecthim.Heissuchanhonestmanaswerespect.(3)thesame…that…与thesameas“thesame…that…”表同一人或物,而“thesame…as…”表同种类的东西。试比较下列两个句子:ThisisthesamebookthatIlost.(指同一本书)ThisisthesamebookasIlost.(并不是原来的那一本)(4)as引导非限制性定语从句as作关系代词,还可用来引导非限制性定语从句,可以用来代替一个句子或单词,as引导的句子可放在句首、句末或句中。Themoon,asisknowntoeverybody,travelsroundtheearthonceeverymonth.Asisknowntoeverybody,themoontravelsroundtheearthonceeverymonth.四、关系副词英语中的关系副词有where,when,why等。1、when的用法when指时间,修饰表时间的先行词,在定语从何中作时间状语。JulyandAugustarethemonthswhentheweatherishot.
2、where的用法where指地点,修饰表地点的先行词,在定语从句中作地点状语。Shewillgohomewhereshecanrest.注意:先行词为表示时间、地点的名词时,关系词不一定都用when或where。如果关系词在定语从句中作主语或宾语,就要用关系代词which或that。Thisisthefactorythat/whichwevisitedlastyear.Iwon"tforgetthetimethatwespentinthecountryside.3、why的用法why指原因,修饰名词reason,在定语从句中作原因状语。Thisisthereasonwhyhedidso.Doyouknowthereasonwhyheleftearly? 五、“介词+关系代词”用法“介词+关系代词”的结构是一较为复杂的问题,初学英语者对此往往感到棘手。因此,下面仅就几种常见的“介词+关系代词”的结构浅析如下。1、介词+which在定语从句中分别作时间、地点和原因状语介词+which在关系分句中分别作时间,地点和原因状语,代替相应的关系副词when,where和why。Istillrememberthedayonwhich(=when)Ifirstcametoschool.Thefactoryinwhich(=where)Iworkisalargeone.Thisisthereasonforwhich(=why)hewasputinprison.2、介词+which(指物)/whom(指人)在定语从句中作地点状语介词+which(指物)/whom(指人)在关系分句中作地点状语,表示存在关系,关系分句主谓常须倒置。Theyarrivedatafarmhouseinfrontofwhichsatasmallboy.Isawaman,ontheheadofwhomstoodabird.3、不定代词或数词+of+which(指物)/whom(指人),在定语从句中作主语不定代词或数词+of+which(指物)/whom(指人),在关系分句中作主语,说明整体中的部分。Chinahasalotofislands,oneofwhichisTaiwan.Therearealotofstudentshere,noneofwhomlikethefilm.4、介词+which(指物)/whom(指人),在关系分句中作目的、方式或地点状语这种结构中的介词一般受动词或介词后的名词所制约。Couldyoutellmeforwhomyou"veboughtthiscoat?5、介词+which(指物)/whom(指人),用于被动结构的关系分句中,作状语,说明动作的发出者。Thewolfbywhichthesheepwaskilledwasshot.Themanbywhomthewolfwasshotwasagoodhunter.6、名词+ofwhich,代替whose+名词,在关系分句中作定语。Isawsometrees,theleavesofwhich(=whoseleaves)wereblackwithdisease.
Hementionedabook,thetitleofwhich(=whosetitle)I"veforgotten.7、介词+which(指物)/whose(指人),修饰后边的名词。Thedriverwasthemanfromwhoseroomshehadstolenthemaps.比较:介词+which+不定式。此种用法多见于正式文体中,相当于一个带有主语和谓语的定语从句。Shehadonly1.87withwhichtobuy(=shecouldbuy)Jim,herhusband,apresent.Atlasthehadsomethingaboutwhichtowrite(=hecouldwrite)home.六、限制性定语从句和非限制性定语从句1、限制性定语从句定语从句分限制性定语从句和非限制性定语从句两种。限制性定语从句为先行词不可缺少的定语。如果将这种定语从句省去,主句的意思就会不完整或失去意义。这种从句和主句的关系十分密切,写时不用逗号分开。Shehasfoundthenecklacethatshelost2yearsago.(限制性定语从句)Thisisthemanwhocametoseeyouyesterday.(限制性定语从句)IthappenedatthetimewhenIlefttheoffice.2、非限制性定语从句非限制性定语从句和主句的关系不十分密切,只是对先行词作附加的说明,如果去掉,主句的意思仍然清楚。这种从句和主句之间往往用逗号分开,一般不用that来引导。Yesterday,ImetLiPing,whoseemedtobebusy.(非限制性定语从句)InBritain,whichhasapopulationof55.8million,110,000peoplediefromsmokingeachyear.(非限制性定语从句)3、限制性定语从句与非限制性定语从句的区别(1)形式上不同非限制性定语从句在书写时往往用逗号和主句分开,而限制性定语从句不用逗号与主句分开。LastnightIsawaverygoodfilm,whichwasabouttheLongMarch.ThemanwhomImetinthestreetwasadriver.(2)可否省略的不同限制性定语从句是先行词在意义上不可缺少的定语,如果去掉,主句的意思就不完整或失去意义,而非限制性定语从句是对先行词作的附加说明,即使去掉,主句的意思仍然完整。Iwastheonlypersoninmyofficewhowasinvited.Theysetupastateoftheirown,wheretheywouldbefreetokeepNegroesasslaves.(3)关系代词的不同非限制性定语从句不能用that代替who,whom和which,并且关系代词在非限制性定语从句中作宾语时也不能省略,但在限制性定语从句中却恰恰相反。如:
Thisisthebestfilm(that)Ihaveeverseen.Shesanganewsong,whichwelikedverymuch.(4)翻译方式不同限制性定语从句往往译在先行词之前,而非限制性定语从句往往译为一个并列的句子。Sheisthenursewholooksafterthechildren.她就是照料这些孩子的阿姨。ThisnotewasleftbyXiaoWu,whowashereamomentago.这个条子是小吴留的,她刚才到这儿来过。比较:Hehasabrother,wholivesinBeijing.(有一个哥哥。)HehasabrotherwholivesinBeijing.(可能有几个哥哥,其中一个是住在北京的。)4、as与which在非限制性定语从句中的用法区别as和which作为关系代词都可以用来引导非限制性定语从句,指代整个主句所表达的内容,在从句中作主语或宾语,但它们在用法上是有区别的,这一点许多学生往往搞不清楚。现就它们引导非限制性定语从句时的用法简述如下:(1)相同之处当从句位于主句之后,引导词指代整个主句所表达的全部意义时,as和which可以互换。Theelephantislikeasnake,as/whicheverybodycansee.HeisanEnglishman,as/whichIknowfromhisaccent.(2)不同之处①as引导非限制性定语从句时,位置比较灵活,可位于主句之前,也可位于主句之中或之后,而which引导非限制性定语从句只能位于主句之后,不能谓语主句之前。Robertisgoodatlanguages,asweallknow.罗伯特擅长学语言,这我们都知道。Asisknowntoall,Chinawillbeanadvancedandpowerfulcountryin20or30years’time.Air,asweknow,isagas.注意:as引导非限制性定语从句常有“如同……那样”的含义,因此在一些固定结构如asweknow/asisknowntoall(众所周知),asweallcansee(正如我们大家都能看到的那样),ashasbeensaidbefore/above(正如前文所述),ashasbeenpointedout(正如所指出的那样),asmightbeimagined(可以想象得到),asmightbeexpected(正如所预料的那样),asisoftenthecase(情况常常是这样)等中,一般不能用which代替as。②搭配上,在由thesame或such所修饰的名词后通常用as作关系代词引出限制性定语从句。Ihavegotintothesametroubleashe(has).I"veneverheardofsuchamovingstoryasheistelling.
③which引导的从句在意义上相当于一个并列句,可以用andthis代替,意思是“这件事”;as引导的从句主要起连接上下文的作用,表达说话人的观点、看法,并指出主句内容的根据或出处等。例如:Hesoldhisbicycle,whichsurprisedme.(=Hesoldhisbicycle,andthissurprisedme.)Asisknowntoall,Chinaisthecountrywithlargestpopulationintheworld.④当which在从句中指代的是先行词本身而不是主句时,不可用as代替which。Theappletree,whichIplantedlastyear,hasnotborneanyfruit.Thebook,whichIboughtyesterday,isveryinstructive.⑤在从句中作主语时,which既可作系动词be的主语,也可作实义动词的主语,而as只可作系动词be的主语。Hemarriedher,whichwasnatural.(可用as代替which)Hesawthegirl,whichdelightedhim.(不可用as代替which)Hewaslateforclassagain,whichmadetheteacherveryangry.(不可用as代替which)⑥as引导的从句在意义上不可与主语相悖,而which引导的从句则不受此限制。例如:Mummytreatsmelikeababy,whichIcan"tbear.Theresultoftheexperimentwasverygood,whichwehadn"texpected.Theweatherturnedouttobeverygood,whichwasmorethanwecouldexpect.七、特殊的先行词1、当先行词是way意为:方式、方法,时引导定语从句的关系词有三种情况:1)inwhich2)that3)不填。Tellmetheway(不填;inwhich;that)youcamehere.告诉我你是怎么来的。2、当先行词是time意为:次数,时引导定语从句的关系词有两种情况:1)不填2)that。ThisisthefirsttimeIhavebeenhere.这是我第一次来这里。3、当先行词是oneof+复数名词时,定语从句的谓语动词用复数。Heisoneofthestudentswhowerepraisedyesterday.他是昨天受到表扬的学生之一。4、当先行词是the(only)oneof+复数名词时,定语从句的谓语动词用单数。Heisoneofthestudentswhowaspraisedyesterday.他是昨天唯一受到表扬的学生。